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Descripción
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| The hypothesis of the present experiment was that the botanical origin and the technology applied to the soy beans affect the nutritional quality of the soybean meal (SBM) produced. A total of 240 straight-run broilers (Ross 308), one-day old were used to study the influence of origin of soybean meal (SBM) on productive performance of broilers from 1 to 35 d of age. There were 2 feeding periods: 1 to 21 d (3,000 kcal AMEn/kg, 21% CP, and 1.25% total lys) and 21 to 35 d of age (3,140 kcal AMEn/kg, 19.7% CP, and 1.14% total lys and 4 experimental diets based on cereals and with the SBM under study as the main source of protein. The SBM tested were obtained from Argentina (ARG, 44.3% CP), Brazil (BRA, 48.9 % CP), or USA (either from Owensboro Grain, KY; USA-1, 49.3 % CP or Carolina Soya, NC; USA-2, 49.1 % CP). All diets within each period were formulated to contain similar CP content. Each treatment was replicated 12 times and the experimental unit was a cage with 5 chicks each. Thus, the SBM contained in the diets differed according to the type of meal used. From 7 to 35 d of age FCR was lowest for USA-2 and highest for ARG meal with USA-1 and BRA meals being intermediate (1.490, 1.557, 1.529, and 1.529, respectively; P<0.01). Also, from 7 to 21 d of age broilers fed ARG meal showed higher feed intake (84.2 vs. 79.4, 80.3, and 80.3; P<0.001) but were less efficient (1.313 vs. 1.254, 1.271, and 1.285; P<0.01) than broilers fed USA-1, USA-2 or BRA meals. The differences observed in broiler performance among the different soybean meals might be due to the differences in NDF, trypsin inhibitor, CP, and saccharose content. In fact, ARG SBM had more NDF and less CP and lower trypsin inhibitor activity than USA-2 meal. It is concluded that feed mills should analyze incoming batches of SBM for major nutrients prior to feed formulation. | |
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Internacional
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Si |
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Nombre congreso
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98th Poultry Science Association Annual Meeting |
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Tipo de participación
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960 |
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Lugar del congreso
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Raleigh, North Carolina |
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Revisores
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Si |
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ISBN o ISSN
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0032-5791 |
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DOI
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Fecha inicio congreso
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20/07/2009 |
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Fecha fin congreso
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23/07/2009 |
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Desde la página
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1 |
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Hasta la página
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232 |
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Título de las actas
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Poultry Science, 88 (1): 1-232 |